/* ============================================================
   BASE
   ============================================================ */
:root {
  --color-bg: #F6F5F2;
  --color-title: #1F2937;
  --color-text: #4B5563;
  --color-accent: #C0A062;
  --color-card: #FFFFFF;
  --color-border: #E5E1DA;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1180px;
  --radius: 8px;
  --transition: 0.25s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-title);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  color: var(--color-title);
  line-height: 1.3;
  font-weight: 600;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.site-header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-title);
  white-space: nowrap;
}

.brand:hover {
  color: var(--color-title);
}

.brand-text {
  letter-spacing: 0.5px;
}

.site-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav .nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: 4px;
  transition: background var(--transition), color var(--transition);
}

.site-nav .nav-list li a:hover {
  color: var(--color-title);
  background: var(--color-bg);
}

.site-nav .nav-list li a.is-current {
  color: var(--color-accent);
  font-weight: 600;
  background: transparent;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 0;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-title);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.site-main {
  min-height: calc(100vh - 68px - 360px);
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 56px;
}

.site-footer {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links li a {
  font-size: 14px;
  color: var(--color-text);
}

.footer-links li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #9CA3AF;
}

/* ============================================================
   COMPONENTS
   ============================================================ */

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-text);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  color: #9CA3AF;
}

.breadcrumb-current {
  color: var(--color-title);
  font-weight: 500;
}

/* --- Page header --- */
.page-header {
  margin-bottom: 36px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.25;
}

.page-description {
  font-size: 16px;
  color: var(--color-text);
  max-width: 720px;
}

/* --- Section title --- */
.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  line-height: 1.35;
}

.section-title-inline {
  margin-bottom: 0;
}

.section-intro,
.section-desc,
.block-intro {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 24px;
  max-width: 720px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: #A8894E;
  border-color: #A8894E;
  color: #fff;
}

.btn-secondary {
  background: var(--color-card);
  color: var(--color-title);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-outline {
  background: transparent;
  color: var(--color-title);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --- Text link --- */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--color-accent);
  font-weight: 500;
}

.text-link:hover {
  color: #A8894E;
}

.text-link::after {
  content: "→";
  font-size: 14px;
  transition: transform var(--transition);
}

.text-link:hover::after {
  transform: translateX(4px);
}

/* --- Entry card --- */
.entry-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.entry-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(31, 41, 55, 0.06);
}

.entry-card-title,
.entry-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.entry-card-text,
.entry-desc {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 16px;
}

/* --- Content media --- */
.content-media {
  margin-bottom: 24px;
}

.content-media img {
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
}

.content-media figcaption {
  font-size: 13px;
  color: #9CA3AF;
  margin-top: 8px;
  line-height: 1.5;
}

.content-media-inline {
  max-width: 720px;
}

/* --- FAQ --- */
.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-title);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 24px 18px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
}

/* --- Sidebar --- */
.sidebar-inner {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.sidebar-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.sidebar-nav li {
  margin-bottom: 4px;
}

.sidebar-nav li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: 4px;
  transition: background var(--transition), color var(--transition);
}

.sidebar-nav li a:hover {
  background: var(--color-bg);
  color: var(--color-accent);
}

.sidebar-note {
  font-size: 13px;
  color: #9CA3AF;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  line-height: 1.6;
}

.sidebar-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

/* --- Visually hidden --- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   PAGES
   ============================================================ */

/* ---------- HOME ---------- */
.home-main {
  overflow: visible;
}

/* Hero panel */
.hero-panel {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
}

.hero-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 72px 24px;
}

.hero-eyebrow {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-figure {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(31, 41, 55, 0.08);
}

.hero-figure img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

/* Section block */
.section-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px;
}

/* Service overview */
.service-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(31, 41, 55, 0.08);
}

.card-media {
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin: 20px 24px 8px;
}

.card-text {
  font-size: 14px;
  color: var(--color-text);
  margin: 0 24px 16px;
  line-height: 1.6;
}

.card-link {
  display: inline-block;
  margin: 0 24px 20px;
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.card-link:hover {
  color: #A8894E;
}

/* Selection summary */
.selection-summary {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.summary-text {
  font-size: 16px;
  color: var(--color-text);
  max-width: 720px;
  margin-bottom: 24px;
}

.summary-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Insight summary */
.insight-list {
  display: grid;
  gap: 12px;
}

.insight-item {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  align-items: center;
  gap: 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: border-color var(--transition);
}

.insight-item:hover {
  border-color: var(--color-accent);
}

.insight-topic {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-title);
}

.insight-desc {
  font-size: 14px;
  color: var(--color-text);
}

.insight-link {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
  white-space: nowrap;
}

/* Process overview */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.process-step {
  position: relative;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.process-step .step-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-step .step-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

/* Update summary */
.update-list {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.update-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  align-items: baseline;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.update-version {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

.update-note {
  font-size: 15px;
  color: var(--color-text);
}

/* Help entry */
.help-entry {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ---------- FUWU (服务目录) ---------- */
.page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.main-content {
  min-width: 0;
}

.service-category-list {
  display: grid;
  gap: 28px;
}

.service-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  align-items: start;
}

.service-media img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius);
}

.service-info h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-info p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.7;
}

.doc-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.doc-links a {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.doc-links a:hover {
  color: #A8894E;
}

.related-entry {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.related-entry .entry-grid {
  grid-template-columns: repeat(2, 1fr);
}

/* ---------- XUANXING (方案选型) ---------- */
.scenario-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.scenario-figure {
  border-radius: var(--radius);
  overflow: hidden;
}

.scenario-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.scenario-figure figcaption {
  font-size: 13px;
  color: #9CA3AF;
  padding: 12px 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.scenario-note p {
  font-size: 15px;
  color: var(--color-text);
}

.question-checklist {
  margin-bottom: 48px;
}

.question-list {
  display: grid;
  gap: 16px;
}

.question-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.question-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.option-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}

.option-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 20px;
  position: relative;
}

.option-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
}

.compare-table-section {
  margin-bottom: 48px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.compare-table thead th {
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-title);
  white-space: nowrap;
}

.compare-table tbody th {
  background: var(--color-bg);
  font-weight: 500;
  color: var(--color-title);
  white-space: nowrap;
  width: 140px;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.check-steps {
  margin-bottom: 48px;
}

.step-list {
  display: grid;
  gap: 16px;
}

.step-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.step-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-text);
}

.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.related-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  flex: 1;
  min-width: 220px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(31, 41, 55, 0.06);
}

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.related-card p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 12px;
}

/* ---------- GUANCHA (选型观察) ---------- */
.content-section {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

.content-section:last-of-type {
  border-bottom: none;
}

.content-section .question-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.content-section .question-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.question-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
}

.question-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.question-body p {
  font-size: 14px;
  color: var(--color-text);
}

.compare-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.compare-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.compare-card h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-accent);
}

.compare-card p {
  font-size: 14px;
  color: var(--color-text);
}

.compare-note {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-text);
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.method-step {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.method-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.method-step h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.method-step p {
  font-size: 13px;
  color: var(--color-text);
}

.entry-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.entry-links .entry-card {
  display: block;
}

.entry-links .entry-card .entry-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 8px;
}

.entry-links .entry-card .entry-desc {
  display: block;
  font-size: 14px;
  color: var(--color-text);
}

/* ---------- FANGFA (合作指南) ---------- */
.section {
  margin-bottom: 48px;
}

.section-head {
  margin-bottom: 24px;
}

.stage-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.stage-step {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}

.stage-step:hover {
  border-color: var(--color-accent);
}

.step-num {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.step-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-title);
}

.step-brief {
  font-size: 13px;
  color: var(--color-text);
}

.stage-block {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  align-items: start;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.stage-figure {
  border-radius: var(--radius);
  overflow: hidden;
}

.stage-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.stage-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.stage-intro {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 20px;
}

.stage-subtitle {
  font-size: 15px;
  font-weight: 600;
  margin: 20px 0 12px;
  color: var(--color-title);
}

.stage-content .step-list {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.stage-content .step-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 24px;
  position: relative;
}

.stage-content .step-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.material-list {
  display: grid;
  gap: 8px;
}

.material-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 24px;
  position: relative;
}

.material-list li::before {
  content: "·";
  position: absolute;
  left: 8px;
  top: 0;
  font-size: 18px;
  color: var(--color-accent);
}

.stage-link {
  margin-top: 16px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.note-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.note-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.note-card p {
  font-size: 14px;
  color: var(--color-text);
}

.reminder-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.reminder-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.reminder-list {
  display: grid;
  gap: 8px;
}

.reminder-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 24px;
  position: relative;
}

.reminder-list li::before {
  content: "!";
  position: absolute;
  left: 4px;
  top: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
}

.related-entry .entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.related-entry .entry-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.related-entry .entry-card .entry-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.related-entry .entry-card p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.related-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-title);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-accent);
}

.related-links-item:hover {
  color: #A8894E;
}

/* ---------- GENGXIN (更新记录) ---------- */
.update-section {
  margin-bottom: 48px;
}

.update-timeline {
  position: relative;
  display: grid;
  gap: 24px;
}

.update-timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.update-timeline .update-item {
  position: relative;
  padding-left: 56px;
}

.update-timeline .update-item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 24px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-card);
  border: 3px solid var(--color-accent);
}

.update-version {
  margin-bottom: 4px;
}

.version-tag {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 4px;
}

.update-content {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.update-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.update-meta {
  font-size: 13px;
  color: #9CA3AF;
  margin-bottom: 8px;
}

.update-content p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.update-link {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.update-structure-section {
  margin-bottom: 48px;
}

.structure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.structure-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.structure-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-accent);
}

.structure-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.structure-text {
  font-size: 14px;
  color: var(--color-text);
}

.update-media {
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 32px;
}

.update-media img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.update-media figcaption {
  font-size: 13px;
  color: #9CA3AF;
  padding: 12px 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.related-entry-section .entry-grid {
  grid-template-columns: repeat(2, 1fr);
}

/* ---------- BANGZHU (帮助中心) ---------- */
.faq-section .page-header {
  margin-bottom: 24px;
}

.faq-section .section-title {
  margin-bottom: 24px;
}

.sidebar .sidebar-inner {
  position: sticky;
  top: 88px;
}

.sidebar-intro {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 20px;
}

.help-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.help-card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.help-card p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.help-note {
  background: var(--color-bg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-top: 20px;
}

.help-note p {
  font-size: 13px;
  color: #9CA3AF;
  line-height: 1.6;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.related-card {
  display: block;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(31, 41, 55, 0.06);
  border-color: var(--color-accent);
}

.related-name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 8px;
}

.related-desc {
  display: block;
  font-size: 14px;
  color: var(--color-text);
}

.related-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
}

/* ---------- 404 ---------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
}

.error-section {
  text-align: center;
  padding: 48px 24px;
  max-width: 560px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 24px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .hero-panel {
    gap: 32px;
  }

  .hero-figure img {
    height: 300px;
  }

  .stage-block {
    grid-template-columns: 260px 1fr;
    gap: 28px;
    padding: 24px;
  }

  .page-layout {
    grid-template-columns: 1fr 260px;
    gap: 24px;
  }

  .service-item {
    grid-template-columns: 160px 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 60px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(31, 41, 55, 0.08);
    display: block;
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
  }

  .site-nav .nav-list.is-open {
    display: flex;
  }

  .site-nav .nav-list li a {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 4px;
  }

  .site-nav .nav-list li a.is-current {
    background: var(--color-bg);
  }

  .hero-panel {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 16px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-figure img {
    height: 240px;
  }

  .section-block {
    padding: 40px 16px;
  }

  .service-card-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr 1fr;
  }

  .entry-grid {
    grid-template-columns: 1fr;
  }

  .insight-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .update-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 0 16px;
  }

  .footer-bottom {
    padding: 20px 16px;
  }

  .inner-main {
    padding: 24px 16px 40px;
  }

  .page-title {
    font-size: 26px;
  }

  .page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .service-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-media img {
    height: 180px;
  }

  .scenario-media {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .scenario-figure img {
    height: 220px;
  }

  .option-list {
    grid-template-columns: 1fr;
  }

  .stage-steps {
    grid-template-columns: 1fr 1fr;
  }

  .stage-block {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }

  .stage-figure img {
    height: 200px;
  }

  .notes-grid {
    grid-template-columns: 1fr;
  }

  .structure-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .method-steps {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .compare-group {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .entry-links {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .content-section .question-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .sidebar .sidebar-inner {
    position: static;
  }

  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .process-steps {
    grid-template-columns: 1fr;
  }

  .stage-steps {
    grid-template-columns: 1fr;
  }

  .method-steps {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .summary-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .summary-actions .btn {
    width: 100%;
  }

  .hero-title {
    font-size: 24px;
  }

  .page-title {
    font-size: 22px;
  }

  .section-title {
    font-size: 20px;
  }

  .faq-item summary {
    padding: 14px 16px;
    font-size: 15px;
  }

  .faq-item p {
    padding: 0 16px 14px;
  }

  .compare-table th,
  .compare-table td {
    padding: 12px 14px;
  }

  .step-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .update-timeline::before {
    left: 8px;
  }

  .update-timeline .update-item {
    padding-left: 32px;
  }

  .update-timeline .update-item::before {
    left: 2px;
  }

  .error-code {
    font-size: 56px;
  }
}